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Drug Safety-related Labeling Changes (SrLC)

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ASCOR (NDA-209112)

(ASCORBIC ACID)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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07/08/2022 (SUPPL-7)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.2 Hemolysis in Patients with Glucose-6-Phosphate Dehydrogenase Deficiency

Additions and revisions underlined:

Hemolysis has been reported with administration of ascorbic acid in patients with glucose-6-phosphate dehydrogenase deficiency. Patients with glucose-6-phosphate dehydrogenase deficiency may be at increased risk for severe hemolysis during treatment with ascorbic acid.